My latest one is boardgames.
It gives me chance to get off computer (so only physical boardgames - no BGA) and meet new people (so no solo games). And since I like collecting stuff it also plays nicely into this quirk of mine (my collection just passed 140 mark).
The world of modern boardgames is really fascinating and totally different than I remember from childhood - playing boardgames in early 90s in Poland was geeks territory (up there with math and computers) and nowadays its almost badge of honor and all the coolest people will happily play boardgames (just to be clear I do not claim people playing games in 90s were geeks, it was just the prevailing opinion of my peers)